Distributer structure



A. A. KENT.

DISTRIBUTER STRUCTURE.

APPLICATION FILED MAR. 30, 1920- 1,385,625; A Patented July 26, 1921.

:l 4' I II II 1| lfl i l N VEN TOR.

2 ATTORNEY.

To all whom concern;

ARTHUR AT'WATER KENT, ARDMORE, PENNSYLVANIA.

DISTRIBUTER STRUCTURE.

Be it known that I' ARTHUR A'rwArnB I KENT, a citizen of the ilnitedStates, resid- "ing in Ardmore, county of Montgomery, and

circuit of 'State of Pennsylvania, have invented certain new and usefullmprovements in Distributer Structures, of a ecification.

y invention relates to; distributor structure such as employed inthehigh tension 'gnition apparatus for internal combustion engines; t

It is common in index-internal combustion engines vto employ inassociation with a a distributer ele-v ment, rotated in definiterelation with theengine, stationar contacts or terminal connects ed,respectivey, to theispark plugs of the ,difi'erent engine cylinders andsupported on or carried by a detachable member, generally a cap adaptedto house and 'in'close both the "distributor and I the timer forinterrupter structure the support or. cap carrying also 7 a centrallydisposed contact connected with the source of spark" producingenergy'and engaged y a c ntact "9 he: "r t r dtributer'.

It has beenfound,particularly when the contact on therotary distributeris a resllient or yielding one'spaced from the distributer,

thatin replacing the support or Ca ra;

bringing it into operative position, the-su port or; cap may be movedlaterally while p its-fi r pe a p s tl n and in so' going the'centralcontact on the In 'accordance with" my invention, this contact maybeseparated orspacedfrom the ipart 'distributer, and so nrev'entingconflict or engagement with the captermlnal or other, 1n bringingthec'apto its Qp01'itt1YeiPQ sition.

:-. My invention according resides a dis- *tributert apparatus orstructure comprising contact, 'co-a'ctlng with suitable stat onaryterminal or contact, with {means prevent ng a distributer having aresilientor yielding nQP m i d sap bibni s as in of the distributor,contact from theidls- Specification of Letters Patent.

and claimed. a I

which the followingis onne'ction' with muIti cylQ {insulating material.

contacts, such, for example, as are employed or other part andtheyielding or re:

sillent distributor contact may engage, "cauz-xing displacement orinjury to eithergor I j diflicult isovercomeby limiting the extent I'towhic thei'yielding or resilientdistributer Patented July 26,1921.

' Application fiiea'narc so, 1920, serial No. 370,003.

tact free to yield bymovement toward the distributer.

My invention 'residesin features of structune and combinationhereinafter described For an illustration of some of the various formsmymvention may -take,reference is to be had to the accompanying drawing,in

which: f

Figure 1 is a sectional view partly in elevation, of apparatus embodyingmy inven- Fig$2 is a pers ective viewiflof the distributershownin ig. 1.t i 'Fig'.13. is a lon 'tudinal sectional view of my invention. a t

scale, of the insert of Fig. 3.

Referring to Figs. 1 and 2, his abase' or supportto which is attached,as byhook springs2, the cap 3, referably of molded p v pon the base 1within thecap are mounted timer or interrupter to control the "primacircuit of an inductlOIlCOll. "The movab e contact is indicated at 4 andis carried upon an arm 5 actuated by cam 6 to control the co -action ofthe movablecontact t with the stationary contact. The cam" 6 is formedupon or secured to the cam shaft '7; driven, as well understood in theart, in definite relation with the main shaft of the internal combustionengine Whose ignition is controlled by the earn 6.

I 110 a distributer em odying a modification The upper end 8 of the camshaft extends *into a 'recess 9 in the detachable or'removable'dis'tributerymember or block 10, the latter ;hav1ng atthe bottom of therecess 9"the,

transversely extending rib 11, intelgral with member-10, engaging in anoffset s ot in end 8 of the cam shaft, whereby the'shaft 8 in rotatingrotates "the member 10 with it.

Carried by the member 10is the yielding or resilientcontact12,;asofspring,steel or 100 the like, secured at its one endadjacent the'out'er end of the member 10 and extending substantiallyradially toward its center and upwardly away therefrom, whereby its freeend is spaced from member 10 and re- 10$ 56 tn uter, though: leaving thedistributercom 13threadedinto the metallic bushing or in- 1 10 sert 14molded in the distributer block 10. The same screw may secure to themember 10 the metallic brush or terminal 15, whereby the contact 12 andmember 15 are in electrical connection with each other.

In the center of the cap 8, that is, substantially co-axial with theshaft 7, is a metallic bushing or insert 16, with which is adapted to beconnected one terminal of the source of spark producing energy, forexample, one terminal of the high tension secondary winding of aninduction coil. On the lower end of said bushing 16 is the projectingterminal or contact 17 adapted to make contact with the distributercontact 12, the contact 12 rotating with the shaft 7 while maintainingcontact with terminal 17 At equal distances from the center of the shaft7 and suitably angularly or circumferentially spaced are the metallicbushings or inserts 18 molded in or carried by thecap 3 and terminatingwithin the same in the distributer terminals 19, past which theaforesaid brush or terminal 15 rotates, allowing to pass to each insuccession spark producing energy delivered to the spark plugs of theengine cylinders by conductors communicating with the bushings orinserts 18.

'hlolded integral with the member 10, or otherwise suitably provided ashereinafter described, is an upstanding boss or lug 20 having the undercut or recess 21. The boss or lug 20 may originally have no recess 21,or such recess may be formed in the molding operation. To mold therecess 21, however, is more or less difiicult, and itis preferred,therefore, that the boss 20 be originally formed "complete, and therecess 21 thereafter cut or formed by any suitable means.

The boss 20 and its recess 21 are so positioned that the free end of thespring contact 12 extends into the recess, as indicated in Figs. 1 and2, the lip 22 limiting the distance away from the member 10 to which thecontact 12 may spring. lVhen the distributer is isolated, as in Fig. 2,that is, when not in cooperative position with the cap 3 and itsterminals, the spring 12 normally engages the under side of the lip 22.

By this construction, or its equivalent, the distance to which the freeend of the contact 12 may spring away from the member 10 is limited, yetthat contact -may yield toward the distributor member 10, as indicatedin Fig. 1, while co-acting with the terminal 17 carried by the cap 8.The contact 12 cannot spring away from the distributer block 10 to suchdistanceas might or would interfere with attachment of the cap 8 to thebase 1 in the operative position illustrated. With the contact spring 12extending to too great a distance from the member 10, the cap or somepart carried thereby in being brought to operative position would engagethe spring 12, and forc ing the cap to position would cause harm eitherto the part of the cap engaging the contact 12, or the contact 12 itselfwould be distorted, bent or otherwise undesirably affected.

In lieu of molding the limiting structure integral with the member 10 asabove described, it may take the form of a separate piece or insert ofmetal or insulating material molded in the member 10 in suitableposition.

This modification of my invention is illustrated in Figs. 3 and 4, wherethe member 20 is an insert of metal or insulating material molded in themember 10 and having or forming a recess 21 below the lip 22.

Or the distributer 21 may have molded therein a hole or recess intowhich there is later inserted or secured a plug of metal or insulatingmaterial suitably formed, for example, having a recess and lip as abovedescribed.

of rotation, a contact spring secured at its one end to said member andadapted to engage adjacent its free end with said one of said terminals,said spring having a bias to separate its free end from said member, and

means on said member limiting the separation of the free end of saidcontact therefrom. i

3. Distributer structure comprising a distributer member, a springcontact thereon secured thereto at its one end and having a a free endblased away from sa d member,

and means on said member projecting from a face thereof and limiting theseparation ofsaid free end from said face of said member.

1. Distributer structure comprising a distributer member, a springcontact secured thereto at its one end and having a bias tending toseparateits free end from said member, and a member on said distributermember having a recess into which the free end of said contact projects.

5. Distributer structure comprising a distributor member, a spring;contact secured thereto at its one end and having a bias tending toseparate its free end from said a said distributor member, and a memberon said distributermember having a lip spaced from said distributermember, the free end of said contact extending under said lip.

6. Distributer structure comprising a dis tributer member of insulatingmaterial, a sprin contact secured at its one end to stributer member andhaving a bias tending to separate its freeend from said distributermember, and a member integral with said distributer member having aprojection beneathwhich the free end of said contact extends.

7. Distributer' structure comprising a, distributer member, a springcontact secured at its one end to said distrlbuter member and having itsfree end at the center of said distributer member, said contact having abias tending to separate its free end from said distributer member, anda stop on said distributer member extending above the face thereof andlimiting the outward movement of said free end of said contact from saidface.

In testimony Whereof I have hereunto affixed my signature this 26th dayof March,

